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The Graveyard - Products No Longer Supported => Routers / COVR => DIR-655 => Topic started by: BrianR on May 15, 2009, 12:40:18 PM

Title: 655 & 5100 problems, need help
Post by: BrianR on May 15, 2009, 12:40:18 PM
I just got a new laptop with and Intel 5100 AGN card in it. It shows that I am connected at 300mb/s but when I test the download speed (at dslreports.com/stest) it only gets up to 2000kb/s.

With my old laptop I had it connected to the 655 via a usb adapter and was able to get 8000-10000kb/s.

Can anyone help me?
Title: Re: 655 & 5100 problems, need help
Post by: wiak on May 15, 2009, 02:04:59 PM
try a diffrent channel and use WPA2 encryption
btw most intel cards only do 150mbps max as they do not support 40mhz channel width
Title: Re: 655 & 5100 problems, need help
Post by: BrianR on May 15, 2009, 04:01:39 PM
I have the router set to WPA2 and AES, I also have it on 20/40hz auto.

I have tried messing with all sorts of settings but cant seem to get faster than 2000kb/s.
Title: Re: 655 & 5100 problems, need help
Post by: Reinvented on May 15, 2009, 04:51:58 PM
Okay, wait..you are getting confused...very very badly!

MBps = Megabytes per second
Mbps = Megabits per second
KBps = Kilobytes per second
Kbps = Kilobits per second

So, with that in mind. 

Your link speed connected to the router is at 300 Megabits per second.  You can ONLY download as fast as your internet connection allows, which if your line is rated at 25 or 26 Mbps (Megabits per second), that will equate to around 2.5 Megabytes per second.

Title: Re: 655 & 5100 problems, need help
Post by: BrianR on May 15, 2009, 05:19:37 PM
Ok, I guess I am confused. My internet speed is 10Mbps, so the maximum download speed I could reach is 12.8 MBps or 1280 Kbps?

If that is the case why did my old computer show download speeds of 8k-10k Kbps? Are those download speed tests not accurate?

If I hook up the usb adapter to this new computer it also shows download speeds of 8k-10k Kbps.
Title: Re: 655 & 5100 problems, need help
Post by: Reinvented on May 15, 2009, 05:49:46 PM
Nope, you still got it wrong. 

Think of it this way..  8 bits = 1 byte. 

10 Mbps (Megabits per second, or just Megabis) = 10000 Kbps (Kilobits per second)  Kilo meaning 1000.  Gotta use math here!

So, 10000 / 8 = 1,250.  1,250 should now then be divided by 1024, because 1024 Kilobytes (KB) = 1 Megabyte (MB).

1,250/1024 = 1.22.  So, you should be downloading at 1.22 Megabytes per second or 1.22 MBps. 

8K or 10K Kbps means you are hitting your 10 Mbps limit, which is what you are rated for.  Your connection is fine.
Title: Re: 655 & 5100 problems, need help
Post by: BrianR on May 15, 2009, 06:30:01 PM
Nope, you still got it wrong. 

Think of it this way..  8 bits = 1 byte. 

10 Mbps (Megabits per second, or just Megabis) = 10000 Kbps (Kilobits per second)  Kilo meaning 1000.  Gotta use math here!

So, 10000 / 8 = 1,250.  1,250 should now then be divided by 1024, because 1024 Kilobytes (KB) = 1 Megabyte (MB).

1,250/1024 = 1.22.  So, you should be downloading at 1.22 Megabytes per second or 1.22 MBps. 

8K or 10K Kbps means you are hitting your 10 Mbps limit, which is what you are rated for.  Your connection is fine.

Thanks for the bits lesson, yes I had bits mixed up a little, but that's beside the point.

I only get up to 10000Kbs with a dlink usb adapter.  I can only get 2000Kbs with the built in 5100 AGN card.
Title: Re: 655 & 5100 problems, need help
Post by: EddieZ on May 16, 2009, 06:02:03 AM
I'm trying to follow your issue logic, but it is not clear to me what your problem really is. It comes down to the 5100 that is performing badly. You might want to check on Intel forums. Only thing I know is that the 5100 causes a lot of performance issues with Wireless N.
Title: Re: 655 & 5100 problems, need help
Post by: BrianR on May 16, 2009, 09:02:16 AM
I'm trying to follow your issue logic, but it is not clear to me what your problem really is. It comes down to the 5100 that is performing badly. You might want to check on Intel forums. Only thing I know is that the 5100 causes a lot of performance issues with Wireless N.


The problem is the intel 5100 card will not reach proper speeds. I am not sure where the issue comes from, I am trying to get help on multiple forums hoping that someone will have an answer.
Title: Re: 655 & 5100 problems, need help
Post by: EddieZ on May 16, 2009, 04:38:48 PM
The problem is the intel 5100 card will not reach proper speeds. I am not sure where the issue comes from, I am trying to get help on multiple forums hoping that someone will have an answer.

It's the 5100 itself and perhaps the Intel forums can help you out...
Title: Re: 655 & 5100 problems, need help
Post by: BrianR on May 16, 2009, 06:48:56 PM
It's the 5100 itself and perhaps the Intel forums can help you out...

According to a couple other people its not the 5100, they claim to have no problems using the 5100 with linksys routers. One person told me they typically get 12Mbps using a speed test with their 5100 and a linksys router. Thats why I ended asking about this here.
Title: Re: 655 & 5100 problems, need help
Post by: EddieZ on May 17, 2009, 02:55:40 AM
According to a couple other people its not the 5100, they claim to have no problems using the 5100 with linksys routers. One person told me they typically get 12Mbps using a speed test with their 5100 and a linksys router. Thats why I ended asking about this here.

Please tell us some more about your testing tactics. How do you measure the transfer speed and is there a firewall installed?
Title: Re: 655 & 5100 problems, need help
Post by: BrianR on May 17, 2009, 08:12:00 AM
Please tell us some more about your testing tactics. How do you measure the transfer speed and is there a firewall installed?

I have been testing the download speeds at dslreports.com/stest. On both computers the only firewall used has been the windows firewall.
Title: Re: 655 & 5100 problems, need help
Post by: EddieZ on May 17, 2009, 08:41:03 AM
If you test internal LAN speed (wireless) you should do this by transferring medium and large files over the LAN/wireless.

Otherwise you can never see where the problem is... You're outbound (WAN speed) is limited by the ISP subscription (1.2 MB/s). If there is a bottleneck with the 5100 the internal testing will show them :-)
You really need to keep those two things separated.

Title: Re: 655 & 5100 problems, need help
Post by: BrianR on May 17, 2009, 07:37:39 PM
If you test internal LAN speed (wireless) you should do this by transferring medium and large files over the LAN/wireless.

Otherwise you can never see where the problem is... You're outbound (WAN speed) is limited by the ISP subscription (1.2 MB/s). If there is a bottleneck with the 5100 the internal testing will show them :-)
You really need to keep those two things separated.



I have no idea how to do what you are talking about, could you tell me how to test this?
Title: Re: 655 & 5100 problems, need help
Post by: EddieZ on May 18, 2009, 06:45:50 AM
I have no idea how to do what you are talking about, could you tell me how to test this?
You can measure internal LAN traffic by sending files from PC1 to PC2 an vice versa. When 1 of these is wireless you can check hoe 'fast' your wireless connection is.

When you use dslreports.com you are using your WAN connection and this way you cannot see where the alleged problem is.

Example:
If you transfer files from wireless PC1 to wired or wireless PC2 you can see the speed the router has to offer. If this is very low, there can be a lot of situations causing this.
But when you test speed at dslreports.com, the error can also be with the speedtest itself, the ISP or the internet gateway device (modem).
Title: Re: 655 & 5100 problems, need help
Post by: BrianR on May 18, 2009, 10:00:12 PM
You can measure internal LAN traffic by sending files from PC1 to PC2 an vice versa. When 1 of these is wireless you can check hoe 'fast' your wireless connection is.

When you use dslreports.com you are using your WAN connection and this way you cannot see where the alleged problem is.

Example:
If you transfer files from wireless PC1 to wired or wireless PC2 you can see the speed the router has to offer. If this is very low, there can be a lot of situations causing this.
But when you test speed at dslreports.com, the error can also be with the speedtest itself, the ISP or the internet gateway device (modem).

I get that dslreports.com probably isnt the most accurate way to measure the speeds, but it has been consistent when doing the tests back to back. With the 5100 I always get around 2000Kbps. I then turn the 5100's wireless connection off and plug in my d-link usb adapter, I consistently get right around 10000Kbps with that.

I will try and figure out how to test sending files between computers and see what kind of results I come up with.
Title: Re: 655 & 5100 problems, need help
Post by: BrianR on May 18, 2009, 10:04:32 PM
It does appear to be that the major problem lies with the 5100 after doing some more research. Hopefully its something drivers can fix.
Title: Re: 655 & 5100 problems, need help
Post by: EddieZ on May 19, 2009, 12:06:49 AM
It does appear to be that the major problem lies with the 5100 after doing some more research. Hopefully its something drivers can fix.

You can always reward me a +1  ;)
Title: Re: 655 & 5100 problems, need help
Post by: BrianR on May 19, 2009, 08:31:09 AM
You can always reward me a +1  ;)

I can't seem to figure out how I do that.
Title: Re: 655 & 5100 problems, need help
Post by: sandman on May 19, 2009, 08:42:45 AM
I can't seem to figure out how I do that.
Just go to any of the posts in this thread from EddieZ and click on the word "applaud". (Left hand side, just below the Karma score)
Title: Re: 655 & 5100 problems, need help
Post by: BrianR on May 21, 2009, 07:32:40 AM
Just go to any of the posts in this thread from EddieZ and click on the word "applaud". (Left hand side, just below the Karma score)

I don't seem to have that option, maybe I dont have enough posts or something?